At the time of construction 1935 Hoover Dam was the largest in the world and although long since it is still an amazing structure and a marvel of engineering a huge, curving wall of plain concrete 660 feet thick at the base and 726 feet high set between the vertical the dam blocks lake mead next
At the time of construction 1935 Hoover Dam was the largest in the world and although long since it is still an amazing structure and a marvel of engineering a huge, curving wall of plain concrete 660 feet thick at the base and 726 feet high set between the vertical the dam blocks lake mead